(5250) Jas Main-belt Asteroid

Discovered on 21 August 1984 by A. Mrkos at Klet.

The Czech word for brightness, Jas symbolizes the South Bohemian Astronomical Society, known in Czech as Jihočeská Astronomická Společnost. Inaugurated in 1928, the society has been concerned mainly with the education and popularization of astronomy, and for this purpose it founded the České Budějovice Observatory in 1937. The establishment of an observatory on the top of Klet mountain was inspired by JAS members. State-aided since the 1950s, the České Budějovice Observatory oversees the directorship of the Klet Observatory and is the home of the Klet archives. Name suggested by M. TichyNaming citation (19960828/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

🐶 Jas as a dog name

Where Jas is today

Seen from above the solar system on 2026-10-14: Jas is 3.15 au from the Sun and 4.09 au from Earth. Computed from JPL's orbital elements.

Facts

Number	5250
Provisional designation	1984 QF
Orbit class	Main-belt Asteroid
Diameter	7.10 km (#7,505 largest of 17,440 named asteroids with a measured size)
Albedo	0.291
Absolute magnitude (H)	13.06
Orbital period	4.38 years
Semi-major axis	2.68 au
Perihelion – aphelion	2.17 – 3.19 au
Eccentricity	0.191
Inclination	13.5°
Closest distance between its orbit and Earth's (MOID)	1.17 au

Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.

Also discovered on 21 August 1984

(7226) Kryl

More named asteroids discovered by A. Mrkos

All 217

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